QSC Audio S series user manual Redundant Configuration, RS-232 Port

Connections: Sync Connection for Redundant Operation, RS-232 Port

Rear panel coax cable and Ethernet connections	REDUNDANT CONFIGURATION
	(hardware setup)
	To slave one RAVE unit to another, connect a male-to-male
	BNC jumper cable from the sync output of the master unit to
	the slave input of the redundant unit. Select the same bundle
	assignment(s) on the slave unit as are selected on the mas-
	ter unit.
	Bundle assignments and additional parameters available for
Configuration example for redundant audio transmission	redundant operation may be configured through MI variables
	via SNMP. Redundancy for network links, hardware and
Note that audio connections must be present at both devices. This may be accomplished through
	routing is also possible. Refer to the Peak Audio and QSC
the use of “Y” connections or by channel duplication from a console or other source device.
	Audio websites regarding additional methods for redundant
	and fail-safe operation on switched Ethernet LANs.

Configuration example for redundant audio reception

Note that destination devices will need to be connected to audio sources from both RAVEs. Although RAVE provides a means to do this directly, a splitter box, duplicate console inputs or

redundant amplifiers may also be used.

RS-232 PORT

The RS-232 port is an auxiliary interface which serves two primary functions. It provides a serial method for upgrading the CobraNet program code and it provides a means to bridge serial data onto Ethernet. The serial bridge allows the user to transmit serial data over the network, from one RAVE unit to another. This is a handy feature for remotely controlling and/or programming accessories and processors that require an RS-232 serial interface. The serial data format is opti- mized for RAVE at 19,200 baud, 9 bits (or 8 bits w/ parity), 1 stop bit. Note that no parity or data validity detection is done within RAVE. The unit simply bridges the serial data onto the network.

Incoming serial data is buffered and broadcast over the net- work. All attached stations receive these broadcasts and transmit the data simultaneously out their respective serial ports. When the RS-232 electrical connection is in use, the serial port operates in a half duplex mode. Port parameters (including unicast transmission) may be configured via the management interface, using SNMP.

For the DB-9 pinout information, see the Appendix.

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